you can check the gns3 file and see the compatible virtualization support and requirement like the centos,linux or ESXi and try to run it on the eve-ng under esxi-dell or linux-dell but make sure of permissions and disk naming

you can add and try any image in the eve.
This one is VMDK vm ware image, and it means that 95% it will work on eve.
EVE is open platform to add anything you like... It is not question abuot supported.... YOU can make it your own supported..
EVE Cookbnook section 17.3
Uldis